<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
	</head>
	<style>
		#app{
			width: 120px;
			height: 340px;
			background-color: blue;
		}
		p{
			width: 500px;
			height: 10px;
			background-color: aqua;
		}
	</style>
	<body>
		<div id="app">
			<P></P>
		</div>
	</body>
</html>